Police say an officer was injured when masked attackers hit the Athens headquarters of Greece's left-wing governing party with Molotov cocktails.
Celebrated French economist Thomas Piketty, the author of an unlikely bestseller on capital, believes Donald Trump represents a "nationalist and racist" backlash against globalisation which must be countered by respect for the radical left's alternative platform.
Greek Prime Minister Alexis Tsipras on Monday took his oath of office a day after being re-elected in a snap general election, which he comfortably won.
Greece's new prime minister, a top judge who is the country's first female premier, named the members of her caretaker government Friday as the country heads to early elections next month, the third time Greeks will go to the polls this year.
Ahead of the euro zone finance ministers' meeting, Greek Prime Minister Alexis Tsipras said on Sunday he expected difficult negotiations but was "full of confidence".
A radical left-wing party vowing to end Greece's painful austerity program won a historic victory in Sunday's parliamentary elections.
The main pro-bailout parties, conservative New Democracy and socialist Pasok, were gaining support, according to the poll by Metron Analysis for the Epenenditis weekly.